Content 1.Difference between short run long run 2.Aggregate demand 3.Aggregate supply in the short long run 4.Shocks to AD and AS 5.Stabilization policy(稳定政策) 6.Chapter summary CHAPTER 9 Introduction to Economic Fluctuations slide 2slide 2 1. Difference between short run & long run 2. Aggregate demand 3. Aggregate supply in the short & long run 4. Shocks to AD and AS 5. Stabilization policy(稳定政策) 6. Chapter summary